Comparison of luminescence, energy resolution and light loss coefficient of Gd1.53La0.47Si2O7:Ce and Lu1.9Y0.1SiO5:Ce scintillators

Nattasuda Yawai, Kriangkrai Wantong, Weerapong Chewpraditkul, Rikito Murakami, Takahiko Horiai, Shunsuke Kurosawa, Akira Yoshikawa, Martin Nikl

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)

Abstract

The luminescence and scintillation properties of Gd1.53La0.47Si2O7:Ce (GPSLa23.5%:Ce) scintillators were investigated and compared to those of Lu1.9Y0.1SiO5:Ce (LYSO:Ce) scintillators. At 662 keV γ-rays, the light yield of 33,500±3300 ph/MeV obtained for GPSLa23.5%:Ce is higher than that of 28,100±2800 ph/MeV obtained for LYSO:Ce. The energy resolution of 4.8±0.2% obtained for GPSLa23.5%:Ce is much better than that of 8.2±0.3% obtained for LYSO:Ce due to its better intrinsic resolution and proportionality of light yield. The light yield and energy resolution for α- rays, as well as a light yield ratio under excitation with α - and γ - rays (α/γ ratio) were also determined. The intrinsic light yield and light loss coefficient under excitation with 662 keV γ-rays were evaluated. The total attenuation coefficient at 60 keV and 662 keV γ - rays was also determined and compared with the theoretical one calculated using the WinXCom program.

Original languageEnglish
Pages (from-to)129-134
Number of pages6
JournalNuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Volume844
DOIs
Publication statusPublished - 2017 Feb 1

Keywords

  • Energy resolution
  • GPSLa23.5%:Ce
  • Light yield
  • LuYSiO:Ce
  • Luminescence
  • Scintillation

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Instrumentation

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